The 12 Best Bioluminescence Tours in Grand Cayman

1.Night Bioluminescence Snorkel Tour

★★★★★★★★★★5.0 · 987 reviews · from $145Our pick

See Grand Cayman’s glowing Bioluminescent Bay by boat and snorkel, with gear, drinks, expert crew, and practical tips for a memorable night tour.

“10/10 recommend booking this experience! From the minute we stepped foot on the boat it was a total vibe! Great music, cold drinks (water, soda and Cay brew) provided, our guides were awesome! Provided with head to toe gear (wet suit, gloves and booties) we got to snorkel under the beautiful sky full of stars while glowing in the water! The boat ride under the night sky was so beautiful and relaxing! Definitely an experience to remember!!”

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2.Bioluminescent Bay Tour

★★★★★★★★★★4.5 · 288 reviews · from $95Best value

See Grand Cayman's starfish and glowing bay by boat, with snorkeling, sunset views, friendly guides, and practical tips for a $95 evening tour.

“The crew was wonderful and made the experience memorable . They did their best to have everyone engaged and we felt extremely safe with them.”

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3.Private: Bioluminescence Tour

★★★★★★★★★★5.0 · 44 reviews · from $599

See Grand Cayman’s glowing blue bioluminescence on a private boat tour for up to six, with swimming, snorkeling, stargazing, and flexible planning.

“Such a special and wonderful experience! The boat ride is memorable and the bioluminescence was absolutely magical.”

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4.Private Boat Charter Snorkeling Stingray City or Bio Bay

★★★★★★★★★★5.0 · 36 reviews · from $600

Review of a private Grand Cayman boat charter for Stingray City, bioluminescent bay, Starfish Point, and Rum Point.

“It was amazing so surreal and enjoyable. Captain Mike was amazing. The whole family enjoyed it. The stingrays are so magnificent and the bioluminescence Bay was surreal.”

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5.Grand Cayman Bioluminescent Bay Adventure

★★★★★★★★★★4.0 · 27 reviews · from $149

See Grand Cayman's glowing Bio Bay, visit Starfish Point, and swim among bioluminescent plankton on this practical 3-hour evening tour.

“Absolutely amazing! One of the best experiences ever! The captain and crew were knowledgeable and fun!”

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6.Grand Cayman Bioluminescence Adventure

★★★★★★★★★★3.5 · 13 reviews · from $143

Review of Grand Cayman’s bioluminescence boat tour, with Starfish Point, night swimming, transport details, costs, and booking advice.

“The guide was so knowledgeable and great with our family.... he was aware about dangers of jellyfish and properly advised all. The lagoon was magical and the adventure was one for a lifetime.”

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7.Private Bioluminescence Tour in Grand Cayman

★★★★★★★★★★5.0 · 12 reviews · from $1,025

See Grand Cayman’s glowing plankton by boat, then swim among the sparkling water on a private 2.5-hour evening tour.

“Outstanding experience!!! Captain was very knowledgeable and the guide was great!!!! I highly recommend this tour operator!!!”

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8.Bioluminescent Bay Adventure in Grand Cayman

★★★★★★★★★★3.5 · 10 reviews · from $125

See Grand Cayman’s glowing Bio Bay, visit Starfish Point, and swim with bioluminescent plankton on a practical evening boat tour.

“We went on this tour in January 2025. The staff on the boat were fun, friendly and informative! The boat was nice, clean, and comfortable! We saw very little bioluminescence and it wasn’t like it was shown in the listing. Perhaps the jelly fish were not in that location when we went.”

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9.Grand Cayman Bioluminescence Experience

★★★★★★★★★★4.0 · 8 reviews · from $143

Review of Grand Cayman’s bioluminescence boat tour, with Starfish Point, an optional night swim, transport details, value, and practical tips.

“The best group of guides and best camera man! It was so fun and educational! We really enjoyed this tour, pictures, crew! Would definitely do this again if we come back here!!”

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10.Private Bioluminescent Bay Tour

★★★★★★★★★★5.0 · 6 reviews · from $600

See Grand Cayman’s glowing Bio Bay on a private 2.5-hour boat tour with snorkeling gear, drinks, and flexible cancellation.

“10 out of 10 experience! Loved this private tour. Jordan was great and made the trip very special for our family! This was a memory we will have forever! Great communication. Well worth the price!”

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11.Private Boat Charter Experience in Bio Bay Cayman Island

★★★★★★★★★★4.0 · 6 reviews · from $600

Review of Grand Cayman’s private Bio Bay boat charter, with pricing, itinerary, guides, swimming, weather limits, and booking advice.

“It was very nice to see the homes on Bio Bay and was a good experience to be able to swim in the water that turns blue.”

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12.Grand Cayman Bioluminescent Bay Tour

★★★★★★★★★★3.5 · 3 reviews · from $134

Review of Grand Cayman’s bioluminescent bay tour, with Starfish Point, boat time, optional swimming, transport details, price, and tips.

“So much fun! Alex and Jimbo were informative and made sure we maintained the integrity of the waters and marine life while teaching us as well.”

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